Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"chon vi tran snippets" » "chon vi trang snippets", "chon v tran snippets", "chon vi than snippets", "cho vi tran snippets", "con vi tran snippets", "cuon vi tran snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("chon vi tran snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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